NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry: Questions 1222 - 1227 of 1259

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Question number: 1222

» Chemical Bonding » Covalent Bonding » Shapes of Simple Molecules

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MCQ▾

Question

Which of the following statements regarding covalent bond is true?

(1) The electrons are shared between atoms.

(2) The strength of the bond depends upon the extent of overlapping.

(3) The bond formed may or may not be polar.

(4) The bond is non-directional.

Choices

Choice (4)Response

a.

1 and 3 are correct

b.

2 and 4 are correct

c.

1 and 2 are correct

d.

1,2 and 3 are correct

Question number: 1223

» Chemical Bonding » Covalent Bonding » Concept of Electronegativity

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MCQ▾

Question

Which has maximum covalent character?

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 1224

» Chemical Bonding » Covalent Bonding » Concept of Electronegativity

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MCQ▾

Question

Among , , and , the covalent bond character follows the order -

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 1225

» Redox Reactions & Electrochemistry » Electrode Potentials

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MCQ▾

Question

If the half-cell reaction has a large negative reduction potential, it follows that

Choices

Choice (4)Response

a.

A is readily reduced

b.

is readily oxidized

c.

A is readily oxidized

d.

is readily reduced

Question number: 1226

» Redox Reactions & Electrochemistry » Electrode Potentials

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MCQ▾

Question

Which of the following displaces Br2 from an aqueous solution containing bromide ions?

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 1227

» Redox Reactions & Electrochemistry » Fuel Cells

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MCQ▾

Question

In hydrogen-oxygen fuel cell, combustion of hydrogen occurs to

Choices

Choice (4)Response

a.

Produce high purity water

b.

Remove adsorbed oxygen from electrode surfaces

c.

Create potential difference between the two electrodes

d.

Generate heat

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